Rayleigh–Taylor and Richtmyer–Meshkov instabilities: A journey through scales

Y Zhou, RJR Williams, P Ramaprabhu, M Groom… - Physica D: Nonlinear …, 2021 - Elsevier
Hydrodynamic instabilities such as Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM)
instabilities usually appear in conjunction with the Kelvin–Helmholtz (KH) instability and are …

Rayleigh–Taylor and Richtmyer–Meshkov instability induced flow, turbulence, and mixing. II

Y Zhou - Physics Reports, 2017 - Elsevier
Abstract Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities are well-known
pathways towards turbulent mixing layers, in many cases characterized by significant mass …

A multiscale strength model for extreme loading conditions

NR Barton, JV Bernier, R Becker, A Arsenlis… - Journal of applied …, 2011 - pubs.aip.org
We present a multiscale strength model in which strength depends on pressure, strain rate,
temperature, and evolving dislocation density. Model construction employs an information …

High strain-rate plastic flow in Al and Fe

RF Smith, JH Eggert, RE Rudd, DC Swift… - Journal of Applied …, 2011 - pubs.aip.org
Thin Fe and Al foils were ramp-compressed over several to tens of ns timescales to study the
time-dependence associated with the onset of plastic flow. Peak stress states of 15–200 …

[HTML][HTML] Imaging velocity interferometer system for any reflector (VISAR) diagnostics for high energy density sciences

PM Celliers, M Millot - Review of Scientific Instruments, 2023 - pubs.aip.org
Two variants of optical imaging velocimetry, specifically the one-dimensional streaked line-
imaging and the two-dimensional time-resolved area-imaging versions of the Velocity …

Tantalum and vanadium response to shock-wave loading at normal and elevated temperatures. Non-monotonous decay of the elastic wave in vanadium

EB Zaretsky, GI Kanel - Journal of Applied Physics, 2014 - pubs.aip.org
The evolution of the elastic precursor waves in pure tantalum and vanadium is presented at
normal and elevated temperatures over propagation distances that ranged from 0.125 to 3 …

Direct laser writing of low‐density interdigitated foams for plasma drive shaping

JS Oakdale, RF Smith, JB Forien… - Advanced Functional …, 2017 - Wiley Online Library
Monolithic porous bulk materials have many promising applications ranging from energy
storage and catalysis to high energy density physics. High resolution additive manufacturing …

Grain-size-independent plastic flow at ultrahigh pressures and strain rates

HS Park, RE Rudd, RM Cavallo, NR Barton, A Arsenlis… - Physical review …, 2015 - APS
A basic tenet of material science is that the flow stress of a metal increases as its grain size
decreases, an effect described by the Hall-Petch relation. This relation is used extensively in …

Extreme hardening of Pb at high pressure and strain rate

A Krygier, PD Powell, JM McNaney, CM Huntington… - Physical Review Letters, 2019 - APS
We study the high-pressure strength of Pb and Pb-4wt% Sb at the National Ignition Facility.
We measure Rayleigh-Taylor growth of preformed ripples ramp compressed to∼ 400 GPa …

Strong stabilization of the Rayleigh–Taylor instability by material strength at megabar pressures

HS Park, BA Remington, RC Becker, JV Bernier… - Physics of …, 2010 - pubs.aip.org
Experimental results showing significant reductions from classical in the Rayleigh–Taylor
(RT) instability growth rate due to high pressure effective lattice viscosity in metal foils are …